WO2015115606A1 - Method for notifying data rate control information, and base station - Google Patents

Method for notifying data rate control information, and base station Download PDF

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Publication number
WO2015115606A1
WO2015115606A1 PCT/JP2015/052706 JP2015052706W WO2015115606A1 WO 2015115606 A1 WO2015115606 A1 WO 2015115606A1 JP 2015052706 W JP2015052706 W JP 2015052706W WO 2015115606 A1 WO2015115606 A1 WO 2015115606A1
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WIPO (PCT)
Prior art keywords
data rate
base station
control information
rate control
ratio
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PCT/JP2015/052706
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French (fr)
Japanese (ja)
Inventor
ウリ アンダルマワンティ ハプサリ
徹 内野
高橋　秀明
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株式会社Ｎｔｔドコモ
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Priority to JP2015560042A priority Critical patent/JP6516685B2/en
Publication of WO2015115606A1 publication Critical patent/WO2015115606A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters
    • H04W28/22—Negotiating communication rate
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0252—Traffic management, e.g. flow control or congestion control per individual bearer or channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/16—Gateway arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/04—Interfaces between hierarchically different network devices
    • H04W92/14—Interfaces between hierarchically different network devices between access point controllers and backbone network device

Definitions

  • the present invention relates to data rate control in a mobile communication system.
  • CA carrier aggregation
  • CC component carriers
  • FIG. 2 shows an example of dual connectivity.
  • the base station MeNB communicates with the user apparatus UE via CC # 1 (CC of Pcell)
  • the base station SeNB communicates with the user apparatus UE via CC # 2 (CC of Scell). Is realized.
  • FIG. 3 shows downlink communication as an example, and a plurality of bearers are separated by S-GW1 and transmitted to MeNB2 and SeNB3, respectively. That is, U-plane offload is performed for each bearer, and each bearer is transmitted from a different base station eNB.
  • bearer split (transmitting one bearer from a plurality of base stations eNB) for the purpose of improving throughput is not performed.
  • UE-AMBR UE-Aggregate Maximum Bit Rate
  • the UE-AMBR is notified from the MME to the S-GW by GTP-C, and is notified from the MME to each base station eNB by S1-AP signaling.
  • control is performed so that the data rate of the entire non-GBR bearer of the user device UE does not exceed the upper limit value (UE-AMBR) with respect to the communication of the user device UE.
  • UE-AMBR control such control is referred to as UE-AMBR control.
  • FIG. 4 is a diagram illustrating an example in which UE-AMBR control is performed in the LTE system.
  • the S-GW 6 controls the data flowing to the S1-U by the UE-AMBR
  • the eNB 7 controls the data flowing to the radio by the UE-AMBR.
  • the control by the UE-AMBR is performed on the entire bearer related to the communication of the user apparatus UE.
  • FIG. 3 in the method of transmitting data by setting a bearer from S-GW1 to different eNBs 2 and 3, a technique for appropriately performing UE-AMBR control in each node device is not defined,
  • the prior art has a problem that UE-AMBR control cannot be appropriately performed in the system as shown in FIG.
  • the present invention has been made in view of the above points, and an object thereof is to provide a technique for appropriately performing data rate control in a plurality of base stations that perform simultaneous communication with a user apparatus.
  • a first base station, a second base station, and a gateway device that relays data between each base station and an external device are provided, and the user device has the first base station A data rate control information notification method in a mobile communication system for communicating with a station and the second base station, A determining step in which the first base station determines a ratio of a data rate of communication between the gateway device and the first base station and a data rate of communication between the gateway device and the second base station; , The first base station generates data rate control information based on the ratio determined in the determining step, and transmits the data rate control information to the second base station.
  • the data rate so that the data rate related to the communication of the user apparatus does not exceed the upper limit value based on the data rate control information.
  • a data rate control information notification method for which control is performed is provided.
  • the first base station, the second base station, and the gateway device that relays data between each base station and an external device are provided.
  • the base station used as the first base station the base station used as the first base station, A determining unit that determines a ratio of a data rate of communication between the gateway device and the base station and a data rate of communication between the gateway device and the second base station; A data rate control information transmitting unit that generates data rate control information based on the ratio determined by the determining unit and transmits the data rate control information to the second base station;
  • data rate control is performed so that a data rate related to communication of the user apparatus does not exceed an upper limit value based on the data rate control information.
  • a base station is provided.
  • FIG. 3 is a functional configuration diagram of a ratio determining node device 100.
  • LTE Long Term Evolution
  • Rel-12 Rel-12 or later.
  • FIG. 5 shows an overall configuration diagram of the mobile communication system according to the embodiment of the present invention.
  • the mobile communication system according to the present embodiment includes MME 30 and S-GW 40 that configure LTE EPC, and MeNB 10 and SeNB 20 that configure a radio network.
  • the UE 50 can perform dual connectivity communication by communicating with the MeNB 10 and the SeNB 20.
  • the MME 30 and each eNB are connected by an S1-MME interface, and the S-GW 40 and each eNB are connected by an S1-U interface.
  • the MME 30 is a node device that accommodates each eNB, performs UE mobility management, authentication, bearer management set in the UE, and the like, and performs data rate ratio determination and notification processing.
  • the S-GW 40 is a visited packet gateway device that transmits user data, and relays user data between each eNB and an external device.
  • the MeNB 10 and the SeNB 20 are base stations that serve as a master eNB and a secondary eNB in Dual Connectivity.
  • a plurality of SeNBs 20 may be provided.
  • UE50 is a user apparatus which a user holds, for example, a mobile phone, a smart phone or the like.
  • the MME 30 or the MeNB 10 when executing Dual Connectivity, the MME 30 or the MeNB 10 generates data rate control information and notifies each node device that executes UE-AMBR control.
  • Each node device that executes UE-AMBR control executes UE-AMBR control based on the data rate control information. That is, control for limiting the data rate in the entire non-GBR bearer related to communication of the UE 50 is executed.
  • the node device that generates data rate control information and performs notification is referred to as a ratio determining node device 100.
  • the ratio determination node apparatus 100 is MME30 or MeNB10, However, it is not necessarily restricted to this.
  • the ratio determining node apparatus 100 first determines a ratio indicating how much data is to flow to all bearers of the corresponding UE 50 in each node apparatus (M / SeNB).
  • the ratio determining node device 100 includes (1) radio bands (e.g., 10M and 20M) supported by the MeNB and SeNB, (2) the data buffer amount of the UE 50 in each of the MeNB and SeNB, and (3) MeNB. , Effective throughput for UE 50 in each of SeNBs, (4) the ratio of data rate to flow in MeNB vs. SeNB based on one of S1-U backhaul bands in each of MeNB and SeNB, or a plurality of them (May be called ratio).
  • the above information can be called auxiliary information.
  • the ratio determining node apparatus 100 generates data rate control information from the ratio determined as described above, and notifies each node apparatus that performs UE-AMBR control.
  • data rate control information example 1 two types can be used.
  • data rate control information example 2 two types can be used.
  • Data rate control information example 1 will be described with reference to FIG.
  • FIG. 6 is drawn so that the ratio determination node apparatus 100 may be a separate apparatus from the MeNB 10, the case where the ratio determination node apparatus 100 is the MeNB 10 is included.
  • the ratio determining node apparatus 100 notifies each node apparatus of information indicating the ratio (ratio) determined as described above as data rate control information UE-AMBR_fraction.
  • the information to be notified is not limited to the ratio format such as 3: 7, and may be any format as long as the value indicates the ratio (including the ratio itself). For example, 3/10 may be notified.
  • each node device is notified of UE-AMBR by an existing method or other methods.
  • Each node device that has received UE-AMBR_fraction calculates the rate illustrated in FIG. That is, MeNB10 calculates the rate sent by MeNB10, ie, the upper limit data rate of all the bearers of UE50 in MeNB10 as 3 / 10xUE-AMBR.
  • the SeNB 20 calculates the upper limit data rate of all the bearers of the UE 50 in the SeNB 20 as 7/10 ⁇ UE-AMBR.
  • the S-GW 40 calculates the upper limit data rate of the total bearer of the UE 50 flowing to the MeNB 10 as 3/10 ⁇ UE-AMBR, and sets the upper limit data rate of the total bearer of the UE 50 to flow to the SeNB 20 to 7/10 ⁇ . Calculate as UE-AMBR.
  • the data rate is controlled so as not to exceed the calculated data rate.
  • the ratio determining node device 100 may not transmit the determined UE-AMBR_fraction to the S-GW 40.
  • the UE-AMBR_fraction may be notified to the S-GW 40 from a device other than the ratio determining node device 100, or the UE-AMBR_fraction may not be notified to the S-GW 40, and the S-GW 40 may notify the UE-AMBR_fraction.
  • the data rate control using may not be performed.
  • FIG. 7 is drawn so that the ratio determining node device 100 is a separate device from the MeNB 10, but includes a case where the ratio determining node device 100 is the MeNB 10.
  • the ratio determining node device 100 calculates the data rate upper limit value used in each node device performing UE-AMBR control from the ratio determined as described above, and calculates the calculated value for each Notify the node device. That is, in the data rate control information example 2, the ratio determining node device 100 calculates the value calculated by each node device in the data rate control information example 1.
  • the ratio determining node device 100 calculates the upper limit data rate of the total bearer of the UE 50 in the MeNB 10 as 3/10 ⁇ UE-AMBR, and sets this as UE-AMBR_MeNB. Further, the ratio determining node device 100 calculates the upper limit data rate of all the bearers of the UE 50 in the SeNB 20 as 7/10 ⁇ UE-AMBR, and sets this as UE-AMBR_SeNB. If there are a plurality of SeNBs, the ratio determining node device 100 calculates UE-AMBR_SeNB1, UE-AMBR_SeNB2,.
  • the ratio determining node device 100 notifies each node device of UE-AMBR_MeNB and UE-AMBR_SeNB. Note that all the calculated values may be notified to each node device, or only the values used in each node device may be notified.
  • the S-GW 40 that has received the UE-AMBR_MeNB and the UE-AMBR_SeNB performs data rate control so that the total data rate of all the bearers of the UE 50 to the MeNB 10 does not exceed the UE-AMBR_MeNB, and the total of all the bearers of the UE 50 to the SeNB 20 Data rate control is performed so that the data rate does not exceed UE-AMBR_SeNB.
  • the MeNB 10 that has received the UE-AMBR_MeNB performs data rate control so that the total data rate of all the bearers of the UE 50 does not exceed the UE-AMBR_MeNB, and the SeNB 10 that has received the UE-AMBR_SeNB has the data of all the bearers of the UE 50.
  • Data rate control is performed so that the rate does not exceed UE-AMBR_SeNB.
  • the ratio determination node device 100 may not transmit the calculated UE-AMBR_MeNB and UE-AMBR_SeNB to the S-GW 40.
  • UE-AMBR_MeNB and UE-AMBR_SeNB may be notified to the S-GW 40 from a device other than the ratio determining node device 100, or the UE-AMBR_MeNB and UE-AMBR_SeNB are not notified to the S-GW 40.
  • the S-GW 40 may not perform data rate control using the UE-AMBR_MeNB and the UE-AMBR_SeNB.
  • the data rate control information is stored in the ratio determining node device 100 between the S-GW 40 and the MeNB 10 (S1-U I / F) and the data rate between the S-GW 40 and the SeNB 20 (S1 -The sum of the communication data rate of U I / F) is determined not to exceed the original UE-AMBR, and the communication data rate between MeNB 10 and UE 50 (Uu I / F) The sum of the data rate of communication between the SeNB 20 and the UE 50 (Uu I / F) is determined so as not to exceed the original UE-AMBR.
  • the notification of the data rate control information is performed only at the SeNB addition / Modify timing, and the data rate control information may be notified at another timing.
  • the data rate control information is included in the SeNB-added signaling message, but the data rate control information may be transmitted in a message different from the SeNB-added signaling message.
  • FIG. 8 is a sequence diagram showing notification of data rate control information when the MME 30 determines the data rate ratio.
  • a SeNB addition request is transmitted to the SeNB 20 (step 101).
  • the SeNB addition request includes UE Capability and the like.
  • SeNB20 returns SeNB additional response to MeNB10 (step 102).
  • the MeNB 10 transmits an SeNB addition request to the MME 30 (step 103).
  • the SeNB addition request includes the IP address of the SeNB 20 and GTP-U TEID.
  • the MME 30 that has received the SeNB addition request determines the data rate ratio (ratio such as 3: 7 described above), generates data rate control information (step 104), and sends an SeNB addition request including the data rate control information.
  • the data is transmitted to the S-GW 40 (step 105).
  • the S-GW 40 that has received the SeNB addition request including the data rate control information holds the data rate control information and returns an SeNB addition ACK to the MME 30 (step 106).
  • the MME 30 that has received the SeNB additional ACK includes the data rate control information in the SeNB additional ACK, and transmits the SeNB additional ACK to the MeNB 10 (step 107).
  • the S-GW 40 may return the SeNB additional ACK including the data rate control information to the MME 30, and the MME 30 may transmit the SeNB additional ACK including the data rate control information to the MeNB 10, and the MME 30 is generated in Step 104.
  • the transmitted data rate control information may be included in the SeNB additional ACK and transmitted.
  • the MeNB 10 that has received the SeNB addition ACK including the data rate control information holds the data rate control information and transmits an SeNB addition completion including the data rate control information to the SeNB 20 (step 108).
  • the SeNB 20 that has received the SeNB addition completion including the data rate control information holds the data rate control information.
  • auxiliary information in the MeNB 10 and SeNB 20 is necessary.
  • notification of auxiliary information is performed in the sequence shown in FIG.
  • the SeNB 20 transmits SeNB auxiliary information to the MeNB 10 (step 201).
  • the MeNB 10 that has received the SeNB auxiliary information from the SeNB 20 transmits the SeNB auxiliary information and the MeNB auxiliary information to the MME 30 (step 202).
  • the MME 30 that has received the SeNB auxiliary information and the MeNB auxiliary information can determine the data rate ratio based on the information (step 203).
  • the timing at which the notification is performed may be a periodic timing statically determined based on OAM (maintenance operation), a timing at which the state related to the auxiliary information is changed in the SeNB 20 or the MeNB 10, and other timings. But you can.
  • FIG. 10 is a sequence diagram illustrating notification of data rate control information when the MeNB 10 determines the data rate ratio.
  • the MeNB 10 determines the data rate ratio and generates data rate control information (step 301). If MeNB10 determines SeNB addition, a SeNB addition request
  • the SeNB addition request includes data rate control information in addition to UE Capability and the like.
  • the MeNB 10 transmits an SeNB addition request to the MME 30 (step 304).
  • the SeNB addition request includes data rate control information in addition to the SeNB 20 IP address and GTP-U TEID.
  • the MME 30 that has received the SeNB addition request transmits an SeNB addition request including the data rate control information received from the MeNB 10 to the S-GW 40 (step 305).
  • the S-GW 40 that has received the SeNB addition request including the data rate control information holds the data rate control information and returns an SeNB addition ACK to the MME 30 (step 306).
  • the MME 30 that has received the SeNB additional ACK transmits the SeNB additional ACK to the MeNB 10 (step 307).
  • MeNB10 which received SeNB addition ACK transmits SeNB addition completion to SeNB20 (step 308).
  • the data rate control information may not be included in the SeNB addition request.
  • the MeNB 10 determines the data rate ratio, auxiliary information in the MeNB 10 and the SeNB 20 is necessary. Since the MeNB 10 holds the MeNB auxiliary information by itself, the MeNB 10 does not need to be notified, but the SeNB auxiliary information needs to be notified.
  • notification of auxiliary information is performed in the sequence shown in FIG. That is, SeNB20 transmits SeNB auxiliary information to MeNB10 (step 401). The MeNB 10 that has received the SeNB auxiliary information determines the data rate ratio based on the received SeNB auxiliary information and the MeNB auxiliary information held by itself (step 402).
  • the timing at which the notification is performed may be a periodic timing statically determined based on OAM (maintenance operation), a timing at which the state related to the auxiliary information is changed in the SeNB 20 or the MeNB 10, and other timings. But you can.
  • FIG. 12 shows a functional configuration diagram of the ratio determining node device 100 that determines the data rate ratio.
  • the ratio determining node device 100 is the MME 30 or the MeNB 10, but is not limited thereto, and other devices may function as the ratio determining node device 100.
  • the ratio determining node device 100 includes an auxiliary information receiving unit 101, a data rate ratio determining unit 102, a data rate control information generating unit 103, and a data rate control information transmitting unit 104.
  • the ratio determination node apparatus 100 when using MeNB100 as the ratio determination node apparatus 100, the ratio determination node apparatus 100 performs data rate control so that the data rate which concerns on communication of the user apparatus UE50 does not exceed the upper limit based on data rate control information. Includes data rate controller.
  • the auxiliary information receiving unit 101 receives auxiliary information from another node device and holds it in the storage means in the ratio determining node device 100.
  • the auxiliary information receiving unit 101 receives auxiliary information from the MeNB 10, and receives auxiliary information from the SeNB 20 in the case of FIG. 11.
  • the data rate ratio determining unit 102 determines the data rate ratio based on the auxiliary information.
  • the data rate control information generation unit 103 generates data rate control information from the data rate ratio determined by the data rate ratio determination unit 102.
  • the data rate control information is UE-AMBR_fraction in the case of FIG. 6, and UE-AMBR_MeNB, UE-AMBR_SeNB, etc. in the case of FIG.
  • the data rate control information transmission unit 104 transmits the data rate control information generated by the data rate control information generation unit 103.
  • This transmission process is, for example, a process of adding data rate control information to a signaling message related to SeNB addition or the like and transmitting the signaling message. Further, the data rate control information transmission unit 104 may transmit a message containing only the data rate control information without including the data rate control information in the signaling message related to SeNB addition or the like.
  • the data rate control information transmitting unit 104 transmits a message including the data rate control information to the S-GW 40.
  • the data rate control information transmission unit 104 transmits a message including data rate control information to the SeNB 20 and the MME 30.
  • the data rate control information transmission unit 104 may transmit the data rate control information to the S-GW 40 without passing through the MME 30.
  • the data rate control information transmission unit 104 may not transmit the data rate control information to either the MME 30 or the S-GW 40.
  • the data rate control information notification method relays data between the first base station, the second base station, the mobility management device, and each base station and an external device.
  • Data rate control information is generated based on the ratio, and the data rate control information is transmitted to the gateway device and the first base station.
  • data for which data rate control is performed so that a data rate related to communication of the user device does not exceed an upper limit value based on the data rate control information
  • the first base station that has received the data rate control information transmits the data rate control information to the second base station.
  • data rate control information can be transmitted to the second base station at the timing of SeNB additional signaling.
  • the mobility management device receives auxiliary information used to determine the ratio from the first base station. Thereby, the ratio can be determined accurately.
  • the first base station, the second base station, and a gateway device that relays data between each base station and an external device the user device has the first base station and A data rate control information notification method in a mobile communication system that communicates with the second base station, wherein the first base station communicates a data rate of communication between the gateway device and the first base station and the gateway.
  • a data rate control information transmitting step for transmitting data rate control information to the second base station, the first base station, and the second base station receiving the data rate control information Oite, the data rate of the communication of the user equipment, the data rate control information notifying method data rate data rate control so as not to exceed the upper limit value based on the control information is performed is provided.
  • the data rate control information is transmitted from the first base station to a mobility management device in the mobile communication system, and is transmitted from the mobility management device to the gateway device.
  • data rate control information can be transmitted to the second base station at the timing of SeNB additional signaling.
  • the first base station can receive auxiliary information used to determine the ratio from the second base station.
  • the auxiliary information is, for example, a radio band supported by the first base station and the second base station, a data buffer amount of the user apparatus in each of the first base station and the second base station, One of effective throughput for the user apparatus in each of the first base station and the second base station, and a backhaul band between the gateway apparatus in each of the first base station and the second base station One or more.
  • the data rate control information is a value calculated from a value indicating the ratio or a predetermined value indicating an upper limit value of the data rate and the ratio.
  • the predetermined value indicating the upper limit value of the data rate is, for example, the current UE-AMBR.
  • the data rate control information is a sum of a data rate of communication between the gateway device and the first base station and a data rate of communication between the gateway device and the second base station, It is determined not to exceed a predetermined value indicating an upper limit value of the data rate, and the data rate of communication between the first base station and the user apparatus and between the second base station and the user apparatus Is determined so as not to exceed the predetermined value indicating the upper limit value of the data rate.
  • the first base station is a base station that is a MeNB in LTE
  • the second base station is one or a plurality of base stations that are one or a plurality of SeNBs in LTE
  • the gateway device is S-GW.
  • a mobile communication system having a first base station, a second base station, a mobility management device, and a gateway device that relays data between each base station and an external device
  • the mobility management device determines a ratio between a data rate of communication between the gateway device and the first base station and a data rate of communication between the gateway device and the second base station, and the mobility management In each device that generates data rate control information based on the determined ratio, transmits the data rate control information to the gateway device and the first base station, and receives the data rate control information, The data rate so that the data rate related to the communication of the user equipment communicating with the first base station and the second base station does not exceed the upper limit value based on the data rate control information.
  • Mobile communication system bets control is performed is provided.
  • a mobile communication system having a first base station, a second base station, and a gateway device that relays data between each base station and an external device, wherein the first base station A station determines a ratio of a data rate of communication between the gateway device and the first base station and a data rate of communication between the gateway device and the second base station, and the first base station In each apparatus that generates data rate control information based on the determined ratio, transmits the data rate control information to the second base station, transmits the data rate control information to the gateway apparatus, and receives the data rate control information.
  • the data rate so that the data rate related to the communication of the user equipment communicating with the first base station and the second base station does not exceed the upper limit value based on the data rate control information.
  • Mobile communication system control is performed is provided.
  • this Embodiment has a gateway apparatus which relays data between a 1st base station, a 2nd base station, and each base station and an external device, and a user apparatus is said 1st base station
  • a gateway apparatus which relays data between a 1st base station, a 2nd base station, and each base station and an external device
  • a user apparatus is said 1st base station
  • a determination unit that determines a ratio of a data rate of communication with the second base station
  • data rate control information is generated based on the ratio determined by the determination unit, and the data rate control information is transmitted to the second base station
  • a data rate control information transmitting unit for transmitting to the station, and in the base station and the second base station that has received the data rate control information, a data rate related to communication of the user apparatus. But the data rate control data rate control so as not to exceed the upper limit value based on the information is performed, the base station is provided.
  • the ratio determining node device 100 may include a CPU and a memory, and may be realized by a program being executed by the CPU (processor).
  • the configuration may be realized by hardware such as a hardware circuit having processing logic described in the above embodiment, or may be a configuration in which a program and hardware are mixed.
  • the operations of a plurality of functional units may be physically performed by one component, or the operations of one functional unit may be physically performed by a plurality of components.
  • the ratio determining node device 100 has been described using a functional block diagram, but such a device may be realized by hardware, software, or a combination thereof.
  • Software operated by the processor included in the ratio determining node device 100 according to the embodiment of the present invention includes random access memory (RAM), flash memory, read only memory (ROM), EPROM, EEPROM, register, hard disk (HDD), and removable.
  • RAM random access memory
  • ROM read only memory
  • EPROM EPROM
  • EEPROM electrically erasable programmable read only memory
  • register hard disk
  • HDD hard disk
  • the data may be stored on a disk, a CD-ROM, a database, a server, or any other appropriate storage medium.
  • MeNB 10 MeNB 20 SeNB 30 MME 40 S-GW 50 UE 100 ratio determining node apparatus 101 auxiliary information receiving section 102 data rate ratio determining section 103 data rate control information generating section 104 data rate control information transmitting section

Abstract

　A method for notifying data rate control information in a mobile communication system having a first base station, a second base station, and a gateway device for relaying data between each base station and an external device, a user device performing communication with the first base station and the second base station, wherein the method is provided with a determination step in which the first base station determines a ratio of the data rate of communication between the gateway device and the first base station to the data rate of communication between the gateway device and the second base station, and a data rate control information transmission step in which the first base station generates data rate control information on the basis of the ratio and transmits the data rate control information to the second base station, data rate control being exerted so that a data rate pertaining to the communication of the user device does not exceed an upper-limit value based on the data rate control information in the first base station and in the second base station having received the data rate control information.

Description

データレート制御情報通知方法、及び基地局Data rate control information notification method and base station
　本発明は、移動通信システムにおけるデータレートの制御に関連するものである。 The present invention relates to data rate control in a mobile communication system.
　ＬＴＥシステムでは、複数のコンポーネントキャリア（以下、ＣＣ）を同時に使用して通信を可能とするキャリアアグリゲーション（以下、ＣＡ）が導入されている。図１に示すように、ＬＴＥのＲｅｌ－１０までのＣＡでは、同一基地局ｅＮＢ配下の複数のＣＣを用いて同時通信を行うことで高スループットを実現することが可能である。 In the LTE system, carrier aggregation (hereinafter referred to as CA) that enables communication by simultaneously using a plurality of component carriers (hereinafter referred to as CC) has been introduced. As shown in FIG. 1, in CA up to LTE Rel-10, high throughput can be realized by performing simultaneous communication using a plurality of CCs under the same base station eNB.
　一方、Ｒｅｌ－１２ではこれをさらに拡張し、異なる基地局ｅＮＢ配下のＣＣを用いて同時通信を行い、高スループットを実現するＤｕａｌ　ｃｏｎｎｅｃｔｉｖｉｔｙ（二重接続）が提案されている。Ｄｕａｌ　ｃｏｎｎｅｃｔｉｖｉｔｙにおいて、Ｐｃｅｌｌを形成する基地局をＭａｓｔｅｒ－ｅＮＢ（ＭｅＮＢ）と呼び、Ｓｃｅｌｌを形成する基地局をＳｅｃｏｎｄａｒｙ－ｅＮＢ（ＳｅＮＢ）と呼ぶ。図２に、Ｄｕａｌ　ｃｏｎｎｅｃｔｉｖｉｔｙの例を示す。図２の例では、基地局ＭｅＮＢがＣＣ＃１（ＰｃｅｌｌのＣＣ）でユーザ装置ＵＥと通信を行い、基地局ＳｅＮＢがＣＣ＃２（ＳｃｅｌｌのＣＣ）でユーザ装置ＵＥと通信を行うことでＣＡを実現している。 On the other hand, in Rel-12, dual connectivity has been proposed in which this is further expanded and simultaneous communication is performed using CCs under different base stations eNB to achieve high throughput. In dual connectivity, a base station that forms a Pcell is called a Master-eNB (MeNB), and a base station that forms a Scell is called a Secondary-eNB (SeNB). FIG. 2 shows an example of dual connectivity. In the example of FIG. 2, the base station MeNB communicates with the user apparatus UE via CC # 1 (CC of Pcell), and the base station SeNB communicates with the user apparatus UE via CC # 2 (CC of Scell). Is realized.
　Ｄｕａｌ　Ｃｏｎｎｅｃｔｉｖｉｔｙを実現するアーキテクチャの一つとして、図３に示すアーキテクチャがある（非特許文献１参照）。図３は例として下り方向の通信を示しており、複数のベアラがＳ－ＧＷ１で分離され、それぞれＭｅＮＢ２とＳｅＮＢ３に送信される。つまり、Ｕ－ｐｌａｎｅのオフロードはベアラ毎で実施され、それぞれのベアラは異なる基地局ｅＮＢから送信される。このアーキテクチャでは、スループットの向上を目的としたベアラスプリット（一つのベアラを複数の基地局ｅＮＢから送信すること）を行わない。 As one of the architectures for realizing Dual Connectivity, there is an architecture shown in FIG. 3 (see Non-Patent Document 1). FIG. 3 shows downlink communication as an example, and a plurality of bearers are separated by S-GW1 and transmitted to MeNB2 and SeNB3, respectively. That is, U-plane offload is performed for each bearer, and each bearer is transmitted from a different base station eNB. In this architecture, bearer split (transmitting one bearer from a plurality of base stations eNB) for the purpose of improving throughput is not performed.
　Ｒｅｌ－８　ＬＴＥでは、データレート制御のためにＵＥ－ＡＭＢＲ（ＵＥ－Ａｇｇｒｅｇａｔｅ　Ｍａｘｉｍｕｍ　Ｂｉｔ　Ｒａｔｅ）パラメータが規定されている。ＵＥ－ＡＭＢＲは、ＭＭＥからＳ－ＧＷにＧＴＰ－Ｃにて通知され、ＭＭＥから各基地局ｅＮＢにＳ１－ＡＰシグナリングにて通知される。ＵＥ－ＡＭＢＲを受信した装置では、ユーザ装置ＵＥの通信に関して、当該ユーザ装置ＵＥのＮｏｎ－ＧＢＲベアラ全体のデータレートが上限値（ＵＥ－ＡＭＢＲ）を超えないように制御が行われる。本明細書ではこのような制御をＵＥ－ＡＭＢＲ制御と呼ぶ。 In Rel-8 LTE, UE-AMBR (UE-Aggregate Maximum Bit Rate) parameters are defined for data rate control. The UE-AMBR is notified from the MME to the S-GW by GTP-C, and is notified from the MME to each base station eNB by S1-AP signaling. In the device that has received the UE-AMBR, control is performed so that the data rate of the entire non-GBR bearer of the user device UE does not exceed the upper limit value (UE-AMBR) with respect to the communication of the user device UE. In this specification, such control is referred to as UE-AMBR control.
　図４はＬＴＥシステムにおいてＵＥ－ＡＭＢＲ制御が行われる例を示す図である。図４に示すように、Ｓ－ＧＷ６は、Ｓ１－Ｕに流れるデータをＵＥ－ＡＭＢＲにより制御し、ｅＮＢ７は、無線に流れるデータをＵＥ－ＡＭＢＲにより制御する。 FIG. 4 is a diagram illustrating an example in which UE-AMBR control is performed in the LTE system. As shown in FIG. 4, the S-GW 6 controls the data flowing to the S1-U by the UE-AMBR, and the eNB 7 controls the data flowing to the radio by the UE-AMBR.
　上記のようにＵＥ－ＡＭＢＲによる制御は、ユーザ装置ＵＥの通信に係るベアラ全体に対して行われる。しかし、図３に示すように、Ｓ－ＧＷ１から異なるｅＮＢ２、３にベアラを張って、データを送信する方式において、各ノード装置で適切にＵＥ－ＡＭＢＲ制御を行う技術は規定されておらず、従来技術では図３のような方式において適切にＵＥ－ＡＭＢＲ制御を行うことができないという問題があった。 As described above, the control by the UE-AMBR is performed on the entire bearer related to the communication of the user apparatus UE. However, as shown in FIG. 3, in the method of transmitting data by setting a bearer from S-GW1 to different eNBs 2 and 3, a technique for appropriately performing UE-AMBR control in each node device is not defined, The prior art has a problem that UE-AMBR control cannot be appropriately performed in the system as shown in FIG.
　本発明は上記の点に鑑みてなされたものであり、ユーザ装置と同時通信を行う複数の基地局において、適切にデータレート制御を行うための技術を提供することを目的とする。 The present invention has been made in view of the above points, and an object thereof is to provide a technique for appropriately performing data rate control in a plurality of base stations that perform simultaneous communication with a user apparatus.
　本発明の実施の形態によれば、第１基地局、第２基地局、及び、各基地局と外部装置との間でデータの中継を行うゲートウェイ装置を有し、ユーザ装置が前記第１基地局及び前記第２基地局と通信を行う移動通信システムにおけるデータレート制御情報通知方法であって、
　前記第１基地局が、前記ゲートウェイ装置と前記第１基地局との間の通信のデータレートと前記ゲートウェイ装置と前記第２基地局との間の通信のデータレートの比を決定する決定ステップと、
　前記第１基地局が、前記決定ステップで決定した比に基づいてデータレート制御情報を生成し、当該データレート制御情報を前記第２基地局に送信するデータレート制御情報送信ステップと、を備え、
　前記第１基地局、及び、前記データレート制御情報を受信した前記第２基地局において、前記ユーザ装置の通信に係るデータレートが、前記データレート制御情報に基づく上限値を超えないようにデータレート制御が行われるデータレート制御情報通知方法が提供される。 According to an embodiment of the present invention, a first base station, a second base station, and a gateway device that relays data between each base station and an external device are provided, and the user device has the first base station A data rate control information notification method in a mobile communication system for communicating with a station and the second base station,
A determining step in which the first base station determines a ratio of a data rate of communication between the gateway device and the first base station and a data rate of communication between the gateway device and the second base station; ,
The first base station generates data rate control information based on the ratio determined in the determining step, and transmits the data rate control information to the second base station.
In the first base station and the second base station that has received the data rate control information, the data rate so that the data rate related to the communication of the user apparatus does not exceed the upper limit value based on the data rate control information. A data rate control information notification method for which control is performed is provided.
　また、本発明の実施の形態によれば、第１基地局、第２基地局、及び、各基地局と外部装置との間でデータの中継を行うゲートウェイ装置を有し、ユーザ装置が前記第１基地局及び前記第２基地局と通信を行う移動通信システムにおいて、前記第１基地局として使用される基地局であって、
　前記ゲートウェイ装置と前記基地局との間の通信のデータレートと前記ゲートウェイ装置と前記第２基地局との間の通信のデータレートの比を決定する決定部と、
　前記決定部で決定した比に基づいてデータレート制御情報を生成し、当該データレート制御情報を前記第２基地局に送信するデータレート制御情報送信部と、を備え、
　前記基地局、及び、前記データレート制御情報を受信した前記第２基地局において、前記ユーザ装置の通信に係るデータレートが、前記データレート制御情報に基づく上限値を超えないようにデータレート制御が行われる、基地局が提供される。 In addition, according to the embodiment of the present invention, the first base station, the second base station, and the gateway device that relays data between each base station and an external device are provided. In a mobile communication system that communicates with one base station and the second base station, the base station used as the first base station,
A determining unit that determines a ratio of a data rate of communication between the gateway device and the base station and a data rate of communication between the gateway device and the second base station;
A data rate control information transmitting unit that generates data rate control information based on the ratio determined by the determining unit and transmits the data rate control information to the second base station;
In the base station and the second base station that has received the data rate control information, data rate control is performed so that a data rate related to communication of the user apparatus does not exceed an upper limit value based on the data rate control information. A base station is provided.
　本発明の実施の形態によれば、ユーザ装置と同時通信を行う複数の基地局において、適切にデータレート制御を行うことが可能となる。 According to the embodiment of the present invention, it is possible to appropriately perform data rate control in a plurality of base stations that perform simultaneous communication with a user apparatus.
Ｒｅｌ－１０までのＣＡを示す図である。It is a figure which shows CA to Rel-10. Ｄｕａｌ　Ｃｏｎｎｅｃｔｉｖｉｔｙの例を示す図である。It is a figure which shows the example of Dual Connectivity. Ｄｕａｌ　Ｃｏｎｎｅｃｔｉｖｉｔｙのアーキテクチャ（１Ａ）を示す図である。It is a figure which shows the architecture (1A) of Dual Connectivity. ＵＥ－ＡＭＢＲ制御の概要を説明するための図である。It is a figure for demonstrating the outline | summary of UE-AMBR control. 本発明の実施の形態に係る通信システムの構成図である。It is a block diagram of the communication system which concerns on embodiment of this invention. データレート制御情報（例１）を説明するための図である。It is a figure for demonstrating data rate control information (example 1). データレート制御情報（例２）を説明するための図である。It is a figure for demonstrating data rate control information (example 2). ＭＭＥ３０がデータレート割合を決定する場合におけるデータレート制御情報の通知を示すシーケンス図である。It is a sequence diagram which shows the notification of the data rate control information in case MME30 determines a data rate ratio. ＭＭＥ３０がデータレート割合を決定する場合における補助情報の通知を示すシーケンス図である。It is a sequence diagram which shows the notification of auxiliary | assistant information in case MME30 determines a data rate ratio. ＭｅＮＢ１０がデータレート割合を決定する場合におけるデータレート制御情報の通知を示すシーケンス図である。It is a sequence diagram which shows the notification of the data rate control information in case MeNB10 determines a data rate ratio. ＭｅＮＢ１０がデータレート割合を決定する場合における補助情報の通知を示すシーケンス図である。It is a sequence diagram which shows the notification of the auxiliary information in case MeNB10 determines a data rate ratio. 割合決定ノード装置１００の機能構成図である。3 is a functional configuration diagram of a ratio determining node device 100. FIG.
　以下、図面を参照して本発明の実施の形態を説明する。なお、以下で説明する実施の形態は一例に過ぎず、本発明が適用される実施の形態は、以下の実施の形態に限られるわけではない。なお、本実施の形態では、ＬＴＥの移動通信システムを対象とするが、本発明はＬＴＥに限らず他の移動通信システムにも適用可能である。また、本明細書及び特許請求の範囲では、特に断らない限り、「ＬＴＥ」の用語は３ＧＰＰのＲｅｌ－１２、もしくは、Ｒｅｌ－１２以降の方式の意味で使用する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. The embodiment described below is only an example, and the embodiment to which the present invention is applied is not limited to the following embodiment. In this embodiment, the LTE mobile communication system is targeted, but the present invention is not limited to LTE and can be applied to other mobile communication systems. In this specification and claims, unless otherwise specified, the term “LTE” is used to mean 3GPP Rel-12 or Rel-12 or later.
　（システムの全体構成、実施の形態の概要）
　図５に、本発明の実施の形態に係る移動通信システムの全体構成図を示す。図５に示すように、本実施の形態の移動通信システムは、ＬＴＥのＥＰＣを構成するＭＭＥ３０、Ｓ－ＧＷ４０、及び、無線ネットワークを構成するＭｅＮＢ１０、ＳｅＮＢ２０を備える。また、ＵＥ５０は、ＭｅＮＢ１０、ＳｅＮＢ２０と通信することで、Ｄｕａｌ　Ｃｏｎｎｅｃｔｉｖｉｔｙ通信が可能である。 (Overall configuration of system, overview of embodiment)
FIG. 5 shows an overall configuration diagram of the mobile communication system according to the embodiment of the present invention. As shown in FIG. 5, the mobile communication system according to the present embodiment includes MME 30 and S-GW 40 that configure LTE EPC, and MeNB 10 and SeNB 20 that configure a radio network. In addition, the UE 50 can perform dual connectivity communication by communicating with the MeNB 10 and the SeNB 20.
　ＭＭＥ３０と各ｅＮＢ間は、Ｓ１－ＭＭＥインタフェースにより接続され、Ｓ－ＧＷ４０と各ｅＮＢ間はＳ１－Ｕインタフェースにより接続される。ＭＭＥ３０は、各ｅＮＢを収容し、ＵＥの移動管理、認証、ＵＥに設定するベアラ管理等を行うとともに、データレート割合決定、通知処理を行うノード装置である。Ｓ－ＧＷ４０は、ユーザデータの伝送を行う在圏パケットゲートウェイ装置であり、各ｅＮＢと外部装置との間でユーザデータの中継を行う。 The MME 30 and each eNB are connected by an S1-MME interface, and the S-GW 40 and each eNB are connected by an S1-U interface. The MME 30 is a node device that accommodates each eNB, performs UE mobility management, authentication, bearer management set in the UE, and the like, and performs data rate ratio determination and notification processing. The S-GW 40 is a visited packet gateway device that transmits user data, and relays user data between each eNB and an external device.
　ＭｅＮＢ１０、ＳｅＮＢ２０は、前述したように、Ｄｕａｌ　Ｃｏｎｎｅｃｔｉｖｉｔｙにおいて、マスターｅＮＢ、セカンダリｅＮＢとなる基地局である。なお、ＳｅＮＢ２０は複数であってもよい。ＵＥ５０は、ユーザが保持するユーザ装置であり、例えば携帯電話機、スマートフォン等である。 As described above, the MeNB 10 and the SeNB 20 are base stations that serve as a master eNB and a secondary eNB in Dual Connectivity. A plurality of SeNBs 20 may be provided. UE50 is a user apparatus which a user holds, for example, a mobile phone, a smart phone or the like.
　本実施の形態では、Ｄｕａｌ　Ｃｏｎｎｅｃｔｉｖｉｔｙを実行する際に、ＭＭＥ３０もしくはＭｅＮＢ１０が、データレート制御情報を生成し、ＵＥ－ＡＭＢＲ制御を実行する各ノード装置に通知することとしている。ＵＥ－ＡＭＢＲ制御を実行する各ノード装置では、当該データレート制御情報に基づいて、ＵＥ－ＡＭＢＲ制御を実行する。つまり、ＵＥ５０の通信に係るｎｏｎ－ＧＢＲベアラ全体におけるデータレートを制限する制御を実行する。 In the present embodiment, when executing Dual Connectivity, the MME 30 or the MeNB 10 generates data rate control information and notifies each node device that executes UE-AMBR control. Each node device that executes UE-AMBR control executes UE-AMBR control based on the data rate control information. That is, control for limiting the data rate in the entire non-GBR bearer related to communication of the UE 50 is executed.
　（データレート制御情報について）
　以下、データレート制御情報についてより詳しく説明する。以下では、データレート制御情報を生成し、通知を行うノード装置を割合決定ノード装置１００とする。本実施の形態では、割合決定ノード装置１００はＭＭＥ３０もしくはＭｅＮＢ１０であるが、これに限られるわけではない。 (About data rate control information)
Hereinafter, the data rate control information will be described in more detail. In the following, the node device that generates data rate control information and performs notification is referred to as a ratio determining node device 100. In this Embodiment, the ratio determination node apparatus 100 is MME30 or MeNB10, However, it is not necessarily restricted to this.
　割合決定ノード装置１００は、まず、それぞれのノード装置（Ｍ／ＳｅＮＢ）における該当ＵＥ５０の全ベアラにどれくらいの割合でデータを流すかを示す割合を決定する。例えば、割合決定ノード装置１００は、（１）ＭｅＮＢ、ＳｅＮＢがそれぞれサポートしている無線帯域（例：１０Ｍ，２０Ｍ）、（２）ＭｅＮＢ、ＳｅＮＢのそれぞれにおけるＵＥ５０のデータバッファ量、（３）ＭｅＮＢ、ＳｅＮＢのそれぞれにおけるＵＥ５０に対する実効スループット、（４）ＭｅＮＢ、ＳｅＮＢのそれぞれにおけるＳ１－Ｕのバックホール帯域のいずれか、又は、これらのうちの複数に基づいて、ＭｅＮＢ対ＳｅＮＢで流すデータレートの割合（比と呼んでもよい）を決定する。上記の情報を補助情報と呼ぶことができる。 The ratio determining node apparatus 100 first determines a ratio indicating how much data is to flow to all bearers of the corresponding UE 50 in each node apparatus (M / SeNB). For example, the ratio determining node device 100 includes (1) radio bands (e.g., 10M and 20M) supported by the MeNB and SeNB, (2) the data buffer amount of the UE 50 in each of the MeNB and SeNB, and (3) MeNB. , Effective throughput for UE 50 in each of SeNBs, (4) the ratio of data rate to flow in MeNB vs. SeNB based on one of S1-U backhaul bands in each of MeNB and SeNB, or a plurality of them (May be called ratio). The above information can be called auxiliary information.
　一例として、割合決定ノード装置１００は、ＭｅＮＢ：ＳｅＮＢ＝３：７と決定する。これは、ＵＥ５０に関する、Ｓ－ＧＷ４０とＭｅＮＢ１０との間の通信のデータレートとＳ－ＧＷ４０とＳｅＮＢ２０との間の通信のデータレートの比が３：７であることを意味する。なお、例えば、ＳｅＮＢが２つある場合、ＭｅＮＢ：ＳｅＮＢ１：ＳｅＮＢ２＝３：７：４のように決定することができる。ＳｅＮＢが２つより多い場合も同様である。 As an example, the ratio determining node device 100 determines MeNB: SeNB = 3: 7. This means that the ratio of the data rate of communication between the S-GW 40 and the MeNB 10 and the data rate of communication between the S-GW 40 and the SeNB 20 for the UE 50 is 3: 7. For example, when there are two SeNBs, it can be determined as MeNB: SeNB1: SeNB2 = 3: 7: 4. The same applies when there are more than two SeNBs.
　割合決定ノード装置１００は、上記のようにして決定した割合からデータレート制御情報を生成し、ＵＥ－ＡＭＢＲ制御を行う各ノード装置に通知する。 The ratio determining node apparatus 100 generates data rate control information from the ratio determined as described above, and notifies each node apparatus that performs UE-AMBR control.
　本実施の形態では、２種類のデータレート制御情報を使用することができる。以下、それぞれをデータレート制御情報例１、データレート制御情報例２として説明する。 In this embodiment, two types of data rate control information can be used. Hereinafter, each will be described as data rate control information example 1 and data rate control information example 2.
　＜データレート制御情報例１＞
　データレート制御情報例１を図６を参照して説明する。なお、図６は、割合決定ノード装置１００が、ＭｅＮＢ１０と別装置であるように描かれているが、割合決定ノード装置１００が、ＭｅＮＢ１０である場合を含む。 <Data rate control information example 1>
Data rate control information example 1 will be described with reference to FIG. In addition, although FIG. 6 is drawn so that the ratio determination node apparatus 100 may be a separate apparatus from the MeNB 10, the case where the ratio determination node apparatus 100 is the MeNB 10 is included.
　データレート制御情報例１では、割合決定ノード装置１００は、上記のようにして決定した割合（比）を示す情報をデータレート制御情報ＵＥ－ＡＭＢＲ＿ｆｒａｃｔｉｏｎとして各ノード装置に通知する。 In the data rate control information example 1, the ratio determining node apparatus 100 notifies each node apparatus of information indicating the ratio (ratio) determined as described above as data rate control information UE-AMBR_fraction.
　例えば、ＵＥ－ＡＭＢＲ＿ｆｒａｃｔｉｏｎ＝３：７は、ＭｅＮＢ対ＳｅＮＢで流すデータレートの割合は３対７であることを示す。また、接続するＳｅＮＢが２つの場合、ＵＥ－ＡＭＢＲ＿ｆｒａｃｔｉｏｎ＝３：７：４という形であってもよい。ＳｅＮＢが２つ以上の場合も同様である。また、通知する情報は、３：７のように比の形式に限られず、当該比を示す値（比そのものを含む）であればどのような形式でもよい。例えば、３／１０を通知することでもよい。 For example, UE-AMBR_fraction = 3: 7 indicates that the ratio of the data rate sent between MeNB and SeNB is 3 to 7. When there are two SeNBs to be connected, UE-AMBR_fraction = 3: 7: 4 may be used. The same applies when there are two or more SeNBs. Further, the information to be notified is not limited to the ratio format such as 3: 7, and may be any format as long as the value indicates the ratio (including the ratio itself). For example, 3/10 may be notified.
　各ノード装置にはＵＥ－ＡＭＢＲは既存の方法あるいはその他の方法で通知されているとする。ＵＥ－ＡＭＢＲ＿ｆｒａｃｔｉｏｎを受信した各ノード装置では、図６に例示するレートの計算を行う。つまり、ＭｅＮＢ１０は、ＭｅＮＢ１０で流すレート、すなわち、ＭｅＮＢ１０におけるＵＥ５０の全ベアラ合計の上限のデータレートを３／１０×ＵＥ－ＡＭＢＲと算出する。ＳｅＮＢ２０は、ＳｅＮＢ２０におけるＵＥ５０の全ベアラ合計の上限のデータレートを７／１０×ＵＥ－ＡＭＢＲと計算する。また、Ｓ－ＧＷ４０は、ＭｅＮＢ１０に流すＵＥ５０の全ベアラ合計の上限のデータレートを３／１０×ＵＥ－ＡＭＢＲと算出し、ＳｅＮＢ２０に流すＵＥ５０の全ベアラ合計の上限のデータレートを７／１０×ＵＥ－ＡＭＢＲと算出する。 Suppose that each node device is notified of UE-AMBR by an existing method or other methods. Each node device that has received UE-AMBR_fraction calculates the rate illustrated in FIG. That is, MeNB10 calculates the rate sent by MeNB10, ie, the upper limit data rate of all the bearers of UE50 in MeNB10 as 3 / 10xUE-AMBR. The SeNB 20 calculates the upper limit data rate of all the bearers of the UE 50 in the SeNB 20 as 7/10 × UE-AMBR. Further, the S-GW 40 calculates the upper limit data rate of the total bearer of the UE 50 flowing to the MeNB 10 as 3/10 × UE-AMBR, and sets the upper limit data rate of the total bearer of the UE 50 to flow to the SeNB 20 to 7/10 ×. Calculate as UE-AMBR.
　各ノード装置においては、算出されたデータレートを超えないようにデータレートの制御がなされる。 In each node device, the data rate is controlled so as not to exceed the calculated data rate.
　なお、割合決定ノード装置１００（例えばＭｅＮＢ１０）は、決定したＵＥ－ＡＭＢＲ＿ｆｒａｃｔｉｏｎをＳ－ＧＷ４０に送信しないこととしてもよい。この場合、割合決定ノード装置１００以外の装置からＳ－ＧＷ４０に対してＵＥ－ＡＭＢＲ＿ｆｒａｃｔｉｏｎが通知されてもよいし、Ｓ－ＧＷ４０に対してＵＥ－ＡＭＢＲ＿ｆｒａｃｔｉｏｎを通知せず、Ｓ－ＧＷ４０がＵＥ－ＡＭＢＲ＿ｆｒａｃｔｉｏｎを用いたデータレートの制御を行わないこととしてもよい。 The ratio determining node device 100 (for example, the MeNB 10) may not transmit the determined UE-AMBR_fraction to the S-GW 40. In this case, the UE-AMBR_fraction may be notified to the S-GW 40 from a device other than the ratio determining node device 100, or the UE-AMBR_fraction may not be notified to the S-GW 40, and the S-GW 40 may notify the UE-AMBR_fraction. The data rate control using may not be performed.
　＜データレート制御情報例２＞
　データレート制御情報例２を図７を参照して説明する。図６と同様に、図７は、割合決定ノード装置１００が、ＭｅＮＢ１０と別装置であるように描かれているが、割合決定ノード装置１００が、ＭｅＮＢ１０である場合を含む。 <Data rate control information example 2>
Data rate control information example 2 will be described with reference to FIG. Similar to FIG. 6, FIG. 7 is drawn so that the ratio determining node device 100 is a separate device from the MeNB 10, but includes a case where the ratio determining node device 100 is the MeNB 10.
　データレート制御情報例２では、割合決定ノード装置１００は、上記のようにして決定した割合から、ＵＥ－ＡＭＢＲ制御を行う各ノード装置で使用するデータレート上限値を算出し、算出した値を各ノード装置に通知する。すなわち、データレート制御情報例２では、データレート制御情報例１において各ノード装置が算出していた値を割合決定ノード装置１００において算出するのである。 In the data rate control information example 2, the ratio determining node device 100 calculates the data rate upper limit value used in each node device performing UE-AMBR control from the ratio determined as described above, and calculates the calculated value for each Notify the node device. That is, in the data rate control information example 2, the ratio determining node device 100 calculates the value calculated by each node device in the data rate control information example 1.
　データレート制御情報例２では、割合決定ノード装置１００は、ＭｅＮＢ１０におけるＵＥ５０の全ベアラ合計の上限のデータレートを３／１０×ＵＥ－ＡＭＢＲと算出し、これをＵＥ－ＡＭＢＲ＿ＭｅＮＢとする。また、割合決定ノード装置１００は、ＳｅＮＢ２０におけるＵＥ５０の全ベアラ合計の上限のデータレートを７／１０×ＵＥ－ＡＭＢＲと計算し、これをＵＥ－ＡＭＢＲ＿ＳｅＮＢとする。なお、ＳｅＮＢが複数である場合には、割合決定ノード装置１００は、ＵＥ－ＡＭＢＲ＿ＳｅＮＢ１、ＵＥ－ＡＭＢＲ＿ＳｅＮＢ２、…を算出する。 In the data rate control information example 2, the ratio determining node device 100 calculates the upper limit data rate of the total bearer of the UE 50 in the MeNB 10 as 3/10 × UE-AMBR, and sets this as UE-AMBR_MeNB. Further, the ratio determining node device 100 calculates the upper limit data rate of all the bearers of the UE 50 in the SeNB 20 as 7/10 × UE-AMBR, and sets this as UE-AMBR_SeNB. If there are a plurality of SeNBs, the ratio determining node device 100 calculates UE-AMBR_SeNB1, UE-AMBR_SeNB2,.
　そして、割合決定ノード装置１００は、ＵＥ－ＡＭＢＲ＿ＭｅＮＢとＵＥ－ＡＭＢＲ＿ＳｅＮＢを各ノード装置に通知する。なお、算出した値の全てを各ノード装置に通知してもよいし、各ノード装置で使用する値のみを通知することとしてもよい。 Then, the ratio determining node device 100 notifies each node device of UE-AMBR_MeNB and UE-AMBR_SeNB. Note that all the calculated values may be notified to each node device, or only the values used in each node device may be notified.
　ＵＥ－ＡＭＢＲ＿ＭｅＮＢとＵＥ－ＡＭＢＲ＿ＳｅＮＢを受信したＳ－ＧＷ４０は、ＭｅＮＢ１０へのＵＥ５０の全ベアラ合計のデータレートがＵＥ－ＡＭＢＲ＿ＭｅＮＢを超えないようにデータレート制御を行い、ＳｅＮＢ２０へのＵＥ５０の全ベアラ合計のデータレートがＵＥ－ＡＭＢＲ＿ＳｅＮＢを超えないようにデータレート制御を行う。 The S-GW 40 that has received the UE-AMBR_MeNB and the UE-AMBR_SeNB performs data rate control so that the total data rate of all the bearers of the UE 50 to the MeNB 10 does not exceed the UE-AMBR_MeNB, and the total of all the bearers of the UE 50 to the SeNB 20 Data rate control is performed so that the data rate does not exceed UE-AMBR_SeNB.
　また、ＵＥ－ＡＭＢＲ＿ＭｅＮＢを受信したＭｅＮＢ１０は、ＵＥ５０の全ベアラ合計のデータレートがＵＥ－ＡＭＢＲ＿ＭｅＮＢを超えないようにデータレート制御を行い、ＵＥ－ＡＭＢＲ＿ＳｅＮＢを受信したＳｅＮＢ１０は、ＵＥ５０の全ベアラ合計のデータレートがＵＥ－ＡＭＢＲ＿ＳｅＮＢを超えないようにデータレート制御を行う。 Further, the MeNB 10 that has received the UE-AMBR_MeNB performs data rate control so that the total data rate of all the bearers of the UE 50 does not exceed the UE-AMBR_MeNB, and the SeNB 10 that has received the UE-AMBR_SeNB has the data of all the bearers of the UE 50. Data rate control is performed so that the rate does not exceed UE-AMBR_SeNB.
　なお、割合決定ノード装置１００（例えばＭｅＮＢ１０）は、算出したＵＥ－ＡＭＢＲ＿ＭｅＮＢとＵＥ－ＡＭＢＲ＿ＳｅＮＢをＳ－ＧＷ４０に送信しないこととしてもよい。この場合、割合決定ノード装置１００以外の装置からＳ－ＧＷ４０に対してＵＥ－ＡＭＢＲ＿ＭｅＮＢとＵＥ－ＡＭＢＲ＿ＳｅＮＢが通知されてもよいし、Ｓ－ＧＷ４０に対してＵＥ－ＡＭＢＲ＿ＭｅＮＢとＵＥ－ＡＭＢＲ＿ＳｅＮＢを通知せず、Ｓ－ＧＷ４０がＵＥ－ＡＭＢＲ＿ＭｅＮＢとＵＥ－ＡＭＢＲ＿ＳｅＮＢを用いたデータレートの制御を行わないこととしてもよい。 Note that the ratio determination node device 100 (for example, the MeNB 10) may not transmit the calculated UE-AMBR_MeNB and UE-AMBR_SeNB to the S-GW 40. In this case, UE-AMBR_MeNB and UE-AMBR_SeNB may be notified to the S-GW 40 from a device other than the ratio determining node device 100, or the UE-AMBR_MeNB and UE-AMBR_SeNB are not notified to the S-GW 40. The S-GW 40 may not perform data rate control using the UE-AMBR_MeNB and the UE-AMBR_SeNB.
　上記の説明は、下り方向を意識した説明であるが、本実施の形態の制御は、上り方向でも同様に行うことができる。 The above description is an explanation in consideration of the down direction, but the control of the present embodiment can be similarly performed in the up direction.
　上記のように、データレート制御情報は、割合決定ノード装置１００において、Ｓ－ＧＷ４０とＭｅＮＢ１０との間（Ｓ１－Ｕ　Ｉ／Ｆ）の通信のデータレートと、Ｓ－ＧＷ４０とＳｅＮＢ２０と間（Ｓ１－Ｕ　Ｉ／Ｆ）の通信のデータレートとの和が、大元のＵＥ－ＡＭＢＲを超えないように決定されるとともに、ＭｅＮＢ１０とＵＥ５０との間（Ｕｕ　Ｉ／Ｆ）の通信のデータレートと、ＳｅＮＢ２０とＵＥ５０との間（Ｕｕ　Ｉ／Ｆ）の通信のデータレートとの和が、大元のＵＥ－ＡＭＢＲを超えないように決定されるのである。 As described above, the data rate control information is stored in the ratio determining node device 100 between the S-GW 40 and the MeNB 10 (S1-U I / F) and the data rate between the S-GW 40 and the SeNB 20 (S1 -The sum of the communication data rate of U I / F) is determined not to exceed the original UE-AMBR, and the communication data rate between MeNB 10 and UE 50 (Uu I / F) The sum of the data rate of communication between the SeNB 20 and the UE 50 (Uu I / F) is determined so as not to exceed the original UE-AMBR.
　（動作シーケンス）
　次に、データレート制御情報の通知に関するシーケンスの例を説明する。本実施の形態では、ＭｅＮＢ１０が、例えばＵＥ５０の受信品質情報等に基づいて、Ｓｃｅｌｌ（ＳｅＮＢ２０）を追加してＤｕａｌ　Ｃｏｎｎｅｃｔｉｖｉｔｙを行うことを決定した場合、もしくは、ＳｅＮＢ２０のＭｏｄｉｆｙ（リソースの変更等）を行うことを決定し、そのためのシグナリングが行われるタイミングでデータレート制御情報の通知を行うこととしている。 (Operation sequence)
Next, an example of a sequence related to notification of data rate control information will be described. In the present embodiment, for example, when the MeNB 10 decides to add a Scell (SeNB 20) and perform dual connectivity based on reception quality information of the UE 50, or the like (Modification of resources, etc.) of the SeNB 20 The data rate control information is notified at the timing when the signaling is performed.
　ＭＭＥ３０がデータレート割合を決定する場合のシーケンスを図８、図９で説明し、ＭｅＮＢ１０がデータレート割合を決定する場合のシーケンスを図１０、図１１で説明する。なお、いずれのケースもＳｅＮＢ追加の場合を示しているが、ＳｅＮＢのＭｏｄｉｆｙの場合も同様のシーケンスとなる。 The sequence when the MME 30 determines the data rate ratio will be described with reference to FIGS. 8 and 9, and the sequence when the MeNB 10 determines the data rate ratio will be described with reference to FIGS. 10 and 11. In addition, although all cases have shown the case of SeNB addition, the same sequence also occurs in the case of Modify of SeNB.
　なお、データレート制御情報の通知をＳｅＮＢ追加／Ｍｏｄｉｆｙのタイミングで実行することは一例に過ぎず、他のタイミングでデータレート制御情報の通知を行ってもよい。 Note that the notification of the data rate control information is performed only at the SeNB addition / Modify timing, and the data rate control information may be notified at another timing.
　また、以下で示す例では、ＳｅＮＢ追加のシグナリングメッセージにデータレート制御情報を含めているが、データレート制御情報を、ＳｅＮＢ追加のシグナリングメッセージとは別のメッセージで送信することとしてもよい。 In the example shown below, the data rate control information is included in the SeNB-added signaling message, but the data rate control information may be transmitted in a message different from the SeNB-added signaling message.
　＜シーケンス例１＞
　図８は、ＭＭＥ３０がデータレート割合を決定する場合におけるデータレート制御情報の通知を示すシーケンス図である。 <Sequence example 1>
FIG. 8 is a sequence diagram showing notification of data rate control information when the MME 30 determines the data rate ratio.
　図８に示すように、ＭｅＮＢ１０がＳｅＮＢ追加を決定すると、ＳｅＮＢ追加要求をＳｅＮＢ２０に送信する（ステップ１０１）。ＳｅＮＢ追加要求には、ＵＥ　Ｃａｐａｂｉｌｉｔｙ等が含まれる。ＳｅＮＢ２０は、ＳｅＮＢ追加ｒｅｓｐｏｎｓｅをＭｅＮＢ１０に返す（ステップ１０２）。 As shown in FIG. 8, when the MeNB 10 determines to add a SeNB, a SeNB addition request is transmitted to the SeNB 20 (step 101). The SeNB addition request includes UE Capability and the like. SeNB20 returns SeNB additional response to MeNB10 (step 102).
　続いて、ＭｅＮＢ１０は、ＳｅＮＢ追加要求をＭＭＥ３０に送信する（ステップ１０３）。ＳｅＮＢ追加要求には、ＳｅＮＢ２０のＩＰアドレス、ＧＴＰ－Ｕ　ＴＥＩＤが含まれる。ＳｅＮＢ追加要求を受信したＭＭＥ３０は、データレート割合（前述した３：７等の比）を決定し、データレート制御情報を生成して（ステップ１０４）、当該データレート制御情報を含むＳｅＮＢ追加要求をＳ－ＧＷ４０に送信する（ステップ１０５）。 Subsequently, the MeNB 10 transmits an SeNB addition request to the MME 30 (step 103). The SeNB addition request includes the IP address of the SeNB 20 and GTP-U TEID. The MME 30 that has received the SeNB addition request determines the data rate ratio (ratio such as 3: 7 described above), generates data rate control information (step 104), and sends an SeNB addition request including the data rate control information. The data is transmitted to the S-GW 40 (step 105).
　データレート制御情報を含むＳｅＮＢ追加要求を受信したＳ－ＧＷ４０は、データレート制御情報を保持するとともに、ＳｅＮＢ追加ＡＣＫをＭＭＥ３０に返す（ステップ１０６）。 The S-GW 40 that has received the SeNB addition request including the data rate control information holds the data rate control information and returns an SeNB addition ACK to the MME 30 (step 106).
　ＳｅＮＢ追加ＡＣＫを受信したＭＭＥ３０は、データレート制御情報をＳｅＮＢ追加ＡＣＫに含め、当該ＳｅＮＢ追加ＡＣＫをＭｅＮＢ１０に送信する（ステップ１０７）。なお、Ｓ－ＧＷ４０が、データレート制御情報を含むＳｅＮＢ追加ＡＣＫをＭＭＥ３０に返し、ＭＭＥ３０がそのデータレート制御情報を含むＳｅＮＢ追加ＡＣＫをＭｅＮＢ１０に送信してもよいし、ＭＭＥ３０は、ステップ１０４で生成したデータレート制御情報をＳｅＮＢ追加ＡＣＫに含めて送信してもよい。 The MME 30 that has received the SeNB additional ACK includes the data rate control information in the SeNB additional ACK, and transmits the SeNB additional ACK to the MeNB 10 (step 107). The S-GW 40 may return the SeNB additional ACK including the data rate control information to the MME 30, and the MME 30 may transmit the SeNB additional ACK including the data rate control information to the MeNB 10, and the MME 30 is generated in Step 104. The transmitted data rate control information may be included in the SeNB additional ACK and transmitted.
　データレート制御情報を含むＳｅＮＢ追加ＡＣＫを受信したＭｅＮＢ１０は、データレート制御情報を保持するとともに、データレート制御情報を含むＳｅＮＢ追加完了をＳｅＮＢ２０に送信する（ステップ１０８）。データレート制御情報を含むＳｅＮＢ追加完了を受信したＳｅＮＢ２０は、当該データレート制御情報を保持する。 The MeNB 10 that has received the SeNB addition ACK including the data rate control information holds the data rate control information and transmits an SeNB addition completion including the data rate control information to the SeNB 20 (step 108). The SeNB 20 that has received the SeNB addition completion including the data rate control information holds the data rate control information.
　前述したように、ＭＭＥ３０がデータレート割合を決定するにあたっては、ＭｅＮＢ１０、ＳｅＮＢ２０における補助情報が必要である。本実施の形態では、図９に示すシーケンスで補助情報の通知を行うこととしている。 As described above, when the MME 30 determines the data rate ratio, auxiliary information in the MeNB 10 and SeNB 20 is necessary. In the present embodiment, notification of auxiliary information is performed in the sequence shown in FIG.
　すなわち、まず、ＳｅＮＢ２０が、ＳｅＮＢ補助情報をＭｅＮＢ１０に送信する（ステップ２０１）。ＳｅＮＢ２０からＳｅＮＢ補助情報を受信したＭｅＮＢ１０は、当該ＳｅＮＢ補助情報と、ＭｅＮＢ補助情報とをＭＭＥ３０に送信する（ステップ２０２）。ＳｅＮＢ補助情報と、ＭｅＮＢ補助情報を受信したＭＭＥ３０は、これらの情報に基づいてデータレート割合を決定することができる（ステップ２０３）。 That is, first, the SeNB 20 transmits SeNB auxiliary information to the MeNB 10 (step 201). The MeNB 10 that has received the SeNB auxiliary information from the SeNB 20 transmits the SeNB auxiliary information and the MeNB auxiliary information to the MME 30 (step 202). The MME 30 that has received the SeNB auxiliary information and the MeNB auxiliary information can determine the data rate ratio based on the information (step 203).
　上記通知を行うタイミングは、ＯＡＭ（保守運用）に基づきスタティックに決められた定期的タイミングでもよいし、ＳｅＮＢ２０もしくはＭｅＮＢ１０において、補助情報に関連する状態に変更があったタイミングでもよいし、その他のタイミングでもよい。 The timing at which the notification is performed may be a periodic timing statically determined based on OAM (maintenance operation), a timing at which the state related to the auxiliary information is changed in the SeNB 20 or the MeNB 10, and other timings. But you can.
　　＜シーケンス例２＞
　次に、ＭｅＮＢ１０がデータレート割合を決定する場合におけるシーケンス例を説明する。図１０は、ＭｅＮＢ１０がデータレート割合を決定する場合におけるデータレート制御情報の通知を示すシーケンス図である。 <Sequence example 2>
Next, a sequence example when the MeNB 10 determines the data rate ratio will be described. FIG. 10 is a sequence diagram illustrating notification of data rate control information when the MeNB 10 determines the data rate ratio.
　図１０に示すように、ＭｅＮＢ１０がデータレート割合を決定し、データレート制御情報を生成する（ステップ３０１）。ＭｅＮＢ１０がＳｅＮＢ追加を決定すると、ＳｅＮＢ追加要求をＳｅＮＢ２０に送信する（ステップ３０２）。ＳｅＮＢ追加要求には、ＵＥ　Ｃａｐａｂｉｌｉｔｙ等に加えて、データレート制御情報が含まれる。ＳｅＮＢ２０は、データレート制御情報を保持し、ＳｅＮＢ追加ｒｅｓｐｏｎｓｅをＭｅＮＢ１０に返す（ステップ３０３）。 As shown in FIG. 10, the MeNB 10 determines the data rate ratio and generates data rate control information (step 301). If MeNB10 determines SeNB addition, a SeNB addition request | requirement will be transmitted to SeNB20 (step 302). The SeNB addition request includes data rate control information in addition to UE Capability and the like. SeNB20 hold | maintains data rate control information and returns SeNB additional response to MeNB10 (step 303).
　続いて、ＭｅＮＢ１０は、ＳｅＮＢ追加要求をＭＭＥ３０に送信する（ステップ３０４）。ＳｅＮＢ追加要求には、ＳｅＮＢ２０のＩＰアドレス、ＧＴＰ－Ｕ　ＴＥＩＤに加えて、データレート制御情報が含まれる。 Subsequently, the MeNB 10 transmits an SeNB addition request to the MME 30 (step 304). The SeNB addition request includes data rate control information in addition to the SeNB 20 IP address and GTP-U TEID.
　ＳｅＮＢ追加要求を受信したＭＭＥ３０は、ＭｅＮＢ１０から受信したデータレート制御情報を含むＳｅＮＢ追加要求をＳ－ＧＷ４０に送信する（ステップ３０５）。 The MME 30 that has received the SeNB addition request transmits an SeNB addition request including the data rate control information received from the MeNB 10 to the S-GW 40 (step 305).
　データレート制御情報を含むＳｅＮＢ追加要求を受信したＳ－ＧＷ４０は、データレート制御情報を保持するとともに、ＳｅＮＢ追加ＡＣＫをＭＭＥ３０に返す（ステップ３０６）。 The S-GW 40 that has received the SeNB addition request including the data rate control information holds the data rate control information and returns an SeNB addition ACK to the MME 30 (step 306).
　ＳｅＮＢ追加ＡＣＫを受信したＭＭＥ３０は、当該ＳｅＮＢ追加ＡＣＫをＭｅＮＢ１０に送信する（ステップ３０７）。ＳｅＮＢ追加ＡＣＫを受信したＭｅＮＢ１０は、ＳｅＮＢ追加完了をＳｅＮＢ２０に送信する（ステップ３０８）。 The MME 30 that has received the SeNB additional ACK transmits the SeNB additional ACK to the MeNB 10 (step 307). MeNB10 which received SeNB addition ACK transmits SeNB addition completion to SeNB20 (step 308).
　前述したように、データレート制御情報をＳ－ＧＷ４０に通知することは必須ではない。従って、図１０のステップ３０４、３０５において、ＳｅＮＢ追加要求の中にデータレート制御情報を含まないこととしてもよい。 As described above, it is not essential to notify the S-GW 40 of the data rate control information. Therefore, in steps 304 and 305 of FIG. 10, the data rate control information may not be included in the SeNB addition request.
　前述したように、ＭｅＮＢ１０がデータレート割合を決定するにあたっては、ＭｅＮＢ１０、ＳｅＮＢ２０における補助情報が必要である。ＭｅＮＢ１０はＭｅＮＢ補助情報については自分で保持しているので通知の必要はないが、ＳｅＮＢ補助情報は通知が必要である。 As described above, when the MeNB 10 determines the data rate ratio, auxiliary information in the MeNB 10 and the SeNB 20 is necessary. Since the MeNB 10 holds the MeNB auxiliary information by itself, the MeNB 10 does not need to be notified, but the SeNB auxiliary information needs to be notified.
　本実施の形態では、図１１に示すシーケンスで補助情報の通知を行うこととしている。すなわち、ＳｅＮＢ２０が、ＳｅＮＢ補助情報をＭｅＮＢ１０に送信する（ステップ４０１）。ＳｅＮＢ補助情報を受信したＭｅＮＢ１０は、受信したＳｅＮＢ補助情報と自分で保持するＭｅＮＢ補助情報に基づいてデータレート割合を決定する（ステップ４０２）。 In the present embodiment, notification of auxiliary information is performed in the sequence shown in FIG. That is, SeNB20 transmits SeNB auxiliary information to MeNB10 (step 401). The MeNB 10 that has received the SeNB auxiliary information determines the data rate ratio based on the received SeNB auxiliary information and the MeNB auxiliary information held by itself (step 402).
　上記通知を行うタイミングは、ＯＡＭ（保守運用）に基づきスタティックに決められた定期的タイミングでもよいし、ＳｅＮＢ２０もしくはＭｅＮＢ１０において、補助情報に関連する状態に変更があったタイミングでもよいし、その他のタイミングでもよい。 The timing at which the notification is performed may be a periodic timing statically determined based on OAM (maintenance operation), a timing at which the state related to the auxiliary information is changed in the SeNB 20 or the MeNB 10, and other timings. But you can.
　（装置構成）
　図１２に、データレート割合を決定する割合決定ノード装置１００の機能構成図を示す。本実施の形態において、割合決定ノード装置１００は、ＭＭＥ３０もしくはＭｅＮＢ１０であるが、これらに限られるわけではなく、他の装置が割合決定ノード装置１００として機能してもよい。 (Device configuration)
FIG. 12 shows a functional configuration diagram of the ratio determining node device 100 that determines the data rate ratio. In the present embodiment, the ratio determining node device 100 is the MME 30 or the MeNB 10, but is not limited thereto, and other devices may function as the ratio determining node device 100.
　図１２に示すように、割合決定ノード装置１００は、補助情報受信部１０１、データレート割合決定部１０２、データレート制御情報生成部１０３、データレート制御情報送信部１０４を備える。 12, the ratio determining node device 100 includes an auxiliary information receiving unit 101, a data rate ratio determining unit 102, a data rate control information generating unit 103, and a data rate control information transmitting unit 104.
　なお、ＭｅＮＢ１００を割合決定ノード装置１００として使用する場合、割合決定ノード装置１００は、ユーザ装置ＵＥ５０の通信に係るデータレートが、データレート制御情報に基づく上限値を超えないようにデータレート制御を行うデータレート制御部を含む。 In addition, when using MeNB100 as the ratio determination node apparatus 100, the ratio determination node apparatus 100 performs data rate control so that the data rate which concerns on communication of the user apparatus UE50 does not exceed the upper limit based on data rate control information. Includes data rate controller.
　補助情報受信部１０１は、補助情報を他のノード装置から受信し、割合決定ノード装置１００内の記憶手段に保持する。例えば、図９のケースであれば、補助情報受信部１０１は、ＭｅＮＢ１０から補助情報を受信し、図１１のケースであればＳｅＮＢ２０から補助情報を受信する。 The auxiliary information receiving unit 101 receives auxiliary information from another node device and holds it in the storage means in the ratio determining node device 100. For example, in the case of FIG. 9, the auxiliary information receiving unit 101 receives auxiliary information from the MeNB 10, and receives auxiliary information from the SeNB 20 in the case of FIG. 11.
　データレート割合決定部１０２は、補助情報に基づきデータレート割合を決定する。データレート制御情報生成部１０３は、データレート割合決定部１０２により決定されたデータレート割合からデータレート制御情報を生成する。データレート制御情報は、図６のケースであれば、ＵＥ－ＡＭＢＲ＿ｆｒａｃｔｉｏｎであり、図７のケースであれば、ＵＥ－ＡＭＢＲ＿ＭｅＮＢ、ＵＥ－ＡＭＢＲ＿ＳｅＮＢ等である。 The data rate ratio determining unit 102 determines the data rate ratio based on the auxiliary information. The data rate control information generation unit 103 generates data rate control information from the data rate ratio determined by the data rate ratio determination unit 102. The data rate control information is UE-AMBR_fraction in the case of FIG. 6, and UE-AMBR_MeNB, UE-AMBR_SeNB, etc. in the case of FIG.
　データレート制御情報送信部１０４は、データレート制御情報生成部１０３により生成されたデータレート制御情報の送信を行う。この送信の処理は、例えば、ＳｅＮＢ追加等に関するシグナリングメッセージにデータレート制御情報を追加し、当該シグナリングメッセージを送信する処理である。また、データレート制御情報送信部１０４は、ＳｅＮＢ追加等に関するシグナリングメッセージにデータレート制御情報を含めずに、データレート制御情報単独のメッセージを送信することとしてもよい。 The data rate control information transmission unit 104 transmits the data rate control information generated by the data rate control information generation unit 103. This transmission process is, for example, a process of adding data rate control information to a signaling message related to SeNB addition or the like and transmitting the signaling message. Further, the data rate control information transmission unit 104 may transmit a message containing only the data rate control information without including the data rate control information in the signaling message related to SeNB addition or the like.
　例えば、図８のケースであれば、データレート制御情報送信部１０４は、データレート制御情報を含むメッセージをＳ－ＧＷ４０に送信する。図１０のケースであれば、データレート制御情報送信部１０４は、データレート制御情報を含むメッセージをＳｅＮＢ２０、及び、ＭＭＥ３０に送信する。なお、データレート制御情報送信部１０４は、データレート制御情報をＭＭＥ３０を経由せずにＳ－ＧＷ４０に送信することとしてもよい。また、データレート制御情報送信部１０４は、データレート制御情報をＭＭＥ３０とＳ－ＧＷ４０のいずれにも送信しないこととしてもよい。 For example, in the case of FIG. 8, the data rate control information transmitting unit 104 transmits a message including the data rate control information to the S-GW 40. In the case of FIG. 10, the data rate control information transmission unit 104 transmits a message including data rate control information to the SeNB 20 and the MME 30. Note that the data rate control information transmission unit 104 may transmit the data rate control information to the S-GW 40 without passing through the MME 30. The data rate control information transmission unit 104 may not transmit the data rate control information to either the MME 30 or the S-GW 40.
　（実施の形態のまとめ）
　以上、説明したように、本実施の形態におけるデータレート制御情報通知方法は、第１基地局、第２基地局、移動管理装置、及び、各基地局と外部装置との間でデータの中継を行うゲートウェイ装置を有し、ユーザ装置が前記第１基地局及び前記第２基地局と通信を行う移動通信システムにおけるデータレート制御情報通知方法であって、前記移動管理装置が、前記ゲートウェイ装置と前記第１基地局との間の通信のデータレートと前記ゲートウェイ装置と前記第２基地局との間の通信のデータレートの比を決定する決定ステップと、前記移動管理装置が、前記決定ステップで決定した比に基づいてデータレート制御情報を生成し、当該データレート制御情報を前記ゲートウェイ装置及び前記第１基地局に送信するデータレート制御情報送信ステップと、を備え、前記データレート制御情報を受信した各装置において、前記ユーザ装置の通信に係るデータレートが、前記データレート制御情報に基づく上限値を超えないようにデータレート制御が行われるデータレート制御情報通知方法である。 (Summary of embodiment)
As described above, the data rate control information notification method according to the present embodiment relays data between the first base station, the second base station, the mobility management device, and each base station and an external device. A data rate control information notification method in a mobile communication system in which a user apparatus communicates with the first base station and the second base station, wherein the mobility management apparatus includes the gateway apparatus and the gateway apparatus. A determination step of determining a ratio between a data rate of communication with the first base station and a data rate of communication between the gateway device and the second base station; and the mobility management device determines in the determination step Data rate control information is generated based on the ratio, and the data rate control information is transmitted to the gateway device and the first base station. In each device that has received the data rate control information, data for which data rate control is performed so that a data rate related to communication of the user device does not exceed an upper limit value based on the data rate control information This is a rate control information notification method.
　前記データレート制御情報送信ステップにおいて、前記データレート制御情報を受信した前記第１基地局が、当該データレート制御情報を前記第２基地局に送信する。このようなシーケンスにより、例えば、ＳｅＮＢ追加のシグナリングのタイミングでデータレート制御情報を第２基地局に送信できる。 In the data rate control information transmitting step, the first base station that has received the data rate control information transmits the data rate control information to the second base station. With such a sequence, for example, data rate control information can be transmitted to the second base station at the timing of SeNB additional signaling.
　また、前記移動管理装置は、前記第１基地局から、前記比を決定するために使用される補助情報を受信する。これにより、的確に前記比を決定できる。 Also, the mobility management device receives auxiliary information used to determine the ratio from the first base station. Thereby, the ratio can be determined accurately.
　また、本実施の形態では、第１基地局、第２基地局、及び、各基地局と外部装置との間でデータの中継を行うゲートウェイ装置を有し、ユーザ装置が前記第１基地局及び前記第２基地局と通信を行う移動通信システムにおけるデータレート制御情報通知方法であって、前記第１基地局が、前記ゲートウェイ装置と前記第１基地局との間の通信のデータレートと前記ゲートウェイ装置と前記第２基地局との間の通信のデータレートの比を決定する決定ステップと、前記第１基地局が、前記決定ステップで決定した比に基づいてデータレート制御情報を生成し、当該データレート制御情報を前記第２基地局に送信するデータレート制御情報送信ステップと、を備え、前記第１基地局、及び、前記データレート制御情報を受信した前記第２基地局において、前記ユーザ装置の通信に係るデータレートが、前記データレート制御情報に基づく上限値を超えないようにデータレート制御が行われるデータレート制御情報通知方法が提供される。 Further, in the present embodiment, the first base station, the second base station, and a gateway device that relays data between each base station and an external device, the user device has the first base station and A data rate control information notification method in a mobile communication system that communicates with the second base station, wherein the first base station communicates a data rate of communication between the gateway device and the first base station and the gateway. A determination step of determining a ratio of a data rate of communication between a device and the second base station, and the first base station generates data rate control information based on the ratio determined in the determination step; A data rate control information transmitting step for transmitting data rate control information to the second base station, the first base station, and the second base station receiving the data rate control information Oite, the data rate of the communication of the user equipment, the data rate control information notifying method data rate data rate control so as not to exceed the upper limit value based on the control information is performed is provided.
　前記データレート制御情報は、前記第１基地局から、前記移動通信システムにおける移動管理装置に送信され、当該移動管理装置から前記ゲートウェイ装置に送信される。このようなシーケンスにより、例えば、ＳｅＮＢ追加のシグナリングのタイミングでデータレート制御情報を第２基地局に送信できる。 The data rate control information is transmitted from the first base station to a mobility management device in the mobile communication system, and is transmitted from the mobility management device to the gateway device. With such a sequence, for example, data rate control information can be transmitted to the second base station at the timing of SeNB additional signaling.
　また、前記第１基地局は、前記第２基地局から、前記比を決定するために使用される補助情報を受信することができる。 Also, the first base station can receive auxiliary information used to determine the ratio from the second base station.
　前記補助情報は、例えば、前記第１基地局と前記第２基地局がそれぞれサポートしている無線帯域、前記第１基地局と前記第２基地局のそれぞれにおける前記ユーザ装置のデータバッファ量、前記第１基地局と前記第２基地局のそれぞれにおける前記ユーザ装置に対する実効スループット、前記第１基地局と前記第２基地局のそれぞれにおける前記ゲートウェイ装置との間のバックホール帯域のうちのいずれか１つ又は複数である。 The auxiliary information is, for example, a radio band supported by the first base station and the second base station, a data buffer amount of the user apparatus in each of the first base station and the second base station, One of effective throughput for the user apparatus in each of the first base station and the second base station, and a backhaul band between the gateway apparatus in each of the first base station and the second base station One or more.
　前記データレート制御情報は、前記比を示す値、又は、データレートの上限値を示す所定値と前記比とから算出された値である。データレートの上限値を示す所定値とは、例えば、現状のＵＥ－ＡＭＢＲである。 The data rate control information is a value calculated from a value indicating the ratio or a predetermined value indicating an upper limit value of the data rate and the ratio. The predetermined value indicating the upper limit value of the data rate is, for example, the current UE-AMBR.
　すなわち、前記データレート制御情報は、前記ゲートウェイ装置と前記第１基地局との間の通信のデータレートと、前記ゲートウェイ装置と前記第２基地局との間の通信のデータレートとの和が、データレートの上限値を示す所定値を超えないように決定されるとともに、前記第１基地局と前記ユーザ装置との間の通信のデータレートと、前記第２基地局と前記ユーザ装置との間の通信のデータレートとの和が、データレートの上限値を示す前記所定値を超えないように決定される。 That is, the data rate control information is a sum of a data rate of communication between the gateway device and the first base station and a data rate of communication between the gateway device and the second base station, It is determined not to exceed a predetermined value indicating an upper limit value of the data rate, and the data rate of communication between the first base station and the user apparatus and between the second base station and the user apparatus Is determined so as not to exceed the predetermined value indicating the upper limit value of the data rate.
　例えば、前記第１基地局は、ＬＴＥにおけるＭｅＮＢとなる基地局であり、前記第２基地局は、ＬＴＥにおける１つ又は複数のＳｅＮＢとなる１つ又は複数の基地局であり、前記ゲートウェイ装置はＳ－ＧＷである。 For example, the first base station is a base station that is a MeNB in LTE, the second base station is one or a plurality of base stations that are one or a plurality of SeNBs in LTE, and the gateway device is S-GW.
　また、本実施の形態では、第１基地局、第２基地局、移動管理装置、及び、各基地局と外部装置との間でデータの中継を行うゲートウェイ装置を有する移動通信システムであって、前記移動管理装置が、前記ゲートウェイ装置と前記第１基地局との間の通信のデータレートと前記ゲートウェイ装置と前記第２基地局との間の通信のデータレートの比を決定し、前記移動管理装置が、前記決定した比に基づいてデータレート制御情報を生成し、当該データレート制御情報を前記ゲートウェイ装置及び前記第１基地局に送信し、前記データレート制御情報を受信した各装置において、前記第１基地局及び前記第２基地局と通信を行うユーザ装置の通信に係るデータレートが、前記データレート制御情報に基づく上限値を超えないようにデータレート制御が行われる移動通信システムが提供される。 Further, in the present embodiment, a mobile communication system having a first base station, a second base station, a mobility management device, and a gateway device that relays data between each base station and an external device, The mobility management device determines a ratio between a data rate of communication between the gateway device and the first base station and a data rate of communication between the gateway device and the second base station, and the mobility management In each device that generates data rate control information based on the determined ratio, transmits the data rate control information to the gateway device and the first base station, and receives the data rate control information, The data rate so that the data rate related to the communication of the user equipment communicating with the first base station and the second base station does not exceed the upper limit value based on the data rate control information. Mobile communication system bets control is performed is provided.
　また、本実施の形態では、第１基地局、第２基地局、及び、各基地局と外部装置との間でデータの中継を行うゲートウェイ装置を有する移動通信システムであって、前記第１基地局が、前記ゲートウェイ装置と前記第１基地局との間の通信のデータレートと前記ゲートウェイ装置と前記第２基地局との間の通信のデータレートの比を決定し、前記第１基地局が、前記決定した比に基づいてデータレート制御情報を生成し、当該データレート制御情報を前記第２基地局に送信するとともに、前記ゲートウェイ装置に送信し、前記データレート制御情報を受信した各装置において、前記第１基地局及び前記第２基地局と通信を行うユーザ装置の通信に係るデータレートが、前記データレート制御情報に基づく上限値を超えないようにデータレート制御が行われる移動通信システムが提供される。 Further, in the present embodiment, there is provided a mobile communication system having a first base station, a second base station, and a gateway device that relays data between each base station and an external device, wherein the first base station A station determines a ratio of a data rate of communication between the gateway device and the first base station and a data rate of communication between the gateway device and the second base station, and the first base station In each apparatus that generates data rate control information based on the determined ratio, transmits the data rate control information to the second base station, transmits the data rate control information to the gateway apparatus, and receives the data rate control information. The data rate so that the data rate related to the communication of the user equipment communicating with the first base station and the second base station does not exceed the upper limit value based on the data rate control information. Mobile communication system control is performed is provided.
　また、本実施の形態においては、第１基地局、第２基地局、及び、各基地局と外部装置との間でデータの中継を行うゲートウェイ装置を有し、ユーザ装置が前記第１基地局及び前記第２基地局と通信を行う移動通信システムにおいて、前記第１基地局として使用される基地局であって、前記ゲートウェイ装置と前記基地局との間の通信のデータレートと前記ゲートウェイ装置と前記第２基地局との間の通信のデータレートの比を決定する決定部と、前記決定部で決定した比に基づいてデータレート制御情報を生成し、当該データレート制御情報を前記第２基地局に送信するデータレート制御情報送信部と、を備え、前記基地局、及び、前記データレート制御情報を受信した前記第２基地局において、前記ユーザ装置の通信に係るデータレートが、前記データレート制御情報に基づく上限値を超えないようにデータレート制御が行われる、基地局が提供される。 Moreover, in this Embodiment, it has a gateway apparatus which relays data between a 1st base station, a 2nd base station, and each base station and an external device, and a user apparatus is said 1st base station In the mobile communication system that communicates with the second base station, a base station used as the first base station, the data rate of communication between the gateway device and the base station, and the gateway device A determination unit that determines a ratio of a data rate of communication with the second base station; and data rate control information is generated based on the ratio determined by the determination unit, and the data rate control information is transmitted to the second base station A data rate control information transmitting unit for transmitting to the station, and in the base station and the second base station that has received the data rate control information, a data rate related to communication of the user apparatus. But the data rate control data rate control so as not to exceed the upper limit value based on the information is performed, the base station is provided.
　本実施の形態で説明した割合決定ノード装置１００（ＭＭＥ３０又はＭｅＮＢ１０）は、ＣＰＵとメモリを備え、プログラムがＣＰＵ（プロセッサ）により実行されることで実現される構成であってもよいし、本実施の形態で説明する処理のロジックを備えたハードウェア回路等のハードウェアで実現される構成であってもよいし、プログラムとハードウェアが混在した構成であってもよい。 The ratio determining node device 100 (MME 30 or MeNB 10) described in the present embodiment may include a CPU and a memory, and may be realized by a program being executed by the CPU (processor). The configuration may be realized by hardware such as a hardware circuit having processing logic described in the above embodiment, or may be a configuration in which a program and hardware are mixed.
　以上、本発明の実施の形態を説明してきたが、開示される発明はそのような実施形態に限定されず、当業者は様々な変形例、修正例、代替例、置換例等を理解するであろう。発明の理解を促すため具体的な数値例を用いて説明がなされたが、特に断りのない限り、それらの数値は単なる一例に過ぎず適切な如何なる値が使用されてもよい。上記の説明における項目の区分けは本発明に本質的ではなく、２以上の項目に記載された事項が必要に応じて組み合わせて使用されてよいし、ある項目に記載された事項が、別の項目に記載された事項に（矛盾しない限り）適用されてよい。機能ブロック図における機能部又は処理部の境界は必ずしも物理的な部品の境界に対応するとは限らない。複数の機能部の動作が物理的には１つの部品で行われてもよいし、あるいは１つの機能部の動作が物理的には複数の部品により行われてもよい。説明の便宜上、割合決定ノード装置１００は機能的なブロック図を用いて説明されたが、そのような装置はハードウェアで、ソフトウェアで又はそれらの組み合わせで実現されてもよい。本発明の実施の形態に従って割合決定ノード装置１００が有するプロセッサにより動作するソフトウェアは、ランダムアクセスメモリ（ＲＡＭ）、フラッシュメモリ、読み取り専用メモリ（ＲＯＭ）、ＥＰＲＯＭ、ＥＥＰＲＯＭ、レジスタ、ハードディスク（ＨＤＤ）、リムーバブルディスク、ＣＤ－ＲＯＭ、データベース、サーバその他の適切な如何なる記憶媒体に保存されてもよい。本発明は上記実施形態に限定されず、本発明の精神から逸脱することなく、様々な変形例、修正例、代替例、置換例等が本発明に包含される。 Although the embodiments of the present invention have been described above, the disclosed invention is not limited to such embodiments, and those skilled in the art will understand various variations, modifications, alternatives, substitutions, and the like. I will. Although specific numerical examples have been described in order to facilitate understanding of the invention, these numerical values are merely examples and any appropriate values may be used unless otherwise specified. The classification of items in the above description is not essential to the present invention, and the items described in two or more items may be used in combination as necessary, or the items described in one item may be used in different items. It may be applied to the matters described in (if not inconsistent). The boundaries between functional units or processing units in the functional block diagram do not necessarily correspond to physical component boundaries. The operations of a plurality of functional units may be physically performed by one component, or the operations of one functional unit may be physically performed by a plurality of components. For convenience of explanation, the ratio determining node device 100 has been described using a functional block diagram, but such a device may be realized by hardware, software, or a combination thereof. Software operated by the processor included in the ratio determining node device 100 according to the embodiment of the present invention includes random access memory (RAM), flash memory, read only memory (ROM), EPROM, EEPROM, register, hard disk (HDD), and removable. The data may be stored on a disk, a CD-ROM, a database, a server, or any other appropriate storage medium. The present invention is not limited to the above embodiments, and various modifications, modifications, alternatives, substitutions, and the like are included in the present invention without departing from the spirit of the present invention.
　本国際特許出願は２０１４年１月３１日に出願した日本国特許出願第２０１４－０１８０４７号に基づきその優先権を主張するものであり、日本国特許出願第２０１４－０１８０４７号の全内容を本願に援用する。 This international patent application claims priority based on Japanese Patent Application No. 2014-018047 filed on January 31, 2014. The entire contents of Japanese Patent Application No. 2014-018047 are incorporated herein by reference. Incorporate.
１０　ＭｅＮＢ
２０　ＳｅＮＢ
３０　ＭＭＥ
４０　Ｓ－ＧＷ
５０　ＵＥ
１００　割合決定ノード装置
１０１　補助情報受信部
１０２　データレート割合決定部
１０３　データレート制御情報生成部
１０４　データレート制御情報送信部 10 MeNB
20 SeNB
30 MME
40 S-GW
50 UE
100 ratio determining node apparatus 101 auxiliary information receiving section 102 data rate ratio determining section 103 data rate control information generating section 104 data rate control information transmitting section

Claims (8)

  1. 　第１基地局、第２基地局、及び、各基地局と外部装置との間でデータの中継を行うゲートウェイ装置を有し、ユーザ装置が前記第１基地局及び前記第２基地局と通信を行う移動通信システムにおけるデータレート制御情報通知方法であって、
    　前記第１基地局が、前記ゲートウェイ装置と前記第１基地局との間の通信のデータレートと前記ゲートウェイ装置と前記第２基地局との間の通信のデータレートの比を決定する決定ステップと、
    　前記第１基地局が、前記決定ステップで決定した比に基づいてデータレート制御情報を生成し、当該データレート制御情報を前記第２基地局に送信するデータレート制御情報送信ステップと、を備え、
    　前記第１基地局、及び、前記データレート制御情報を受信した前記第２基地局において、前記ユーザ装置の通信に係るデータレートが、前記データレート制御情報に基づく上限値を超えないようにデータレート制御が行われる
    　ことを特徴とするデータレート制御情報通知方法。     A first base station, a second base station, and a gateway device that relays data between each base station and an external device, and a user device communicates with the first base station and the second base station A data rate control information notification method in a mobile communication system to perform,
    A determining step in which the first base station determines a ratio of a data rate of communication between the gateway device and the first base station and a data rate of communication between the gateway device and the second base station; ,
    The first base station generates data rate control information based on the ratio determined in the determining step, and transmits the data rate control information to the second base station.
    In the first base station and the second base station that has received the data rate control information, the data rate so that the data rate related to the communication of the user apparatus does not exceed the upper limit value based on the data rate control information. A data rate control information notification method characterized in that control is performed.
  2. 　前記データレート制御情報は、前記第１基地局から、前記移動通信システムにおける移動管理装置に送信され、当該移動管理装置から前記ゲートウェイ装置に送信される
    　ことを特徴とする請求項１に記載のデータレート制御情報通知方法。     The data according to claim 1, wherein the data rate control information is transmitted from the first base station to a mobility management device in the mobile communication system, and transmitted from the mobility management device to the gateway device. Rate control information notification method.
  3. 　前記第１基地局は、前記第２基地局から、前記比を決定するために使用される補助情報を受信する
    　ことを特徴とする請求項１又は２に記載のデータレート制御情報通知方法。     The data rate control information notification method according to claim 1 or 2, wherein the first base station receives auxiliary information used for determining the ratio from the second base station.
  4. 　前記補助情報は、前記第１基地局と前記第２基地局がそれぞれサポートしている無線帯域、前記第１基地局と前記第２基地局のそれぞれにおける前記ユーザ装置のデータバッファ量、前記第１基地局と前記第２基地局のそれぞれにおける前記ユーザ装置に対する実効スループット、前記第１基地局と前記第２基地局のそれぞれにおける前記ゲートウェイ装置との間のバックホール帯域のうちのいずれか１つ又は複数である
    　ことを特徴とする請求項３に記載のデータレート制御情報通知方法。     The auxiliary information includes a radio band supported by the first base station and the second base station, a data buffer amount of the user apparatus in each of the first base station and the second base station, and the first information One of an effective throughput for the user apparatus in each of the base station and the second base station, and a backhaul band between the gateway apparatus in each of the first base station and the second base station, or The data rate control information notification method according to claim 3, wherein there are a plurality of data rate control information notification methods.
  5. 　前記データレート制御情報は、前記比を示す値、又は、データレートの上限値を示す所定値と前記比とから算出された値である
    　ことを特徴とする請求項１ないし４のうちいずれか１項に記載のデータレート制御情報通知方法。     The data rate control information is a value indicating the ratio or a value calculated from the predetermined value indicating the upper limit value of the data rate and the ratio. The data rate control information notification method according to the item.
  6. 　前記データレート制御情報は、前記ゲートウェイ装置と前記第１基地局との間の通信のデータレートと、前記ゲートウェイ装置と前記第２基地局との間の通信のデータレートとの和が、データレートの上限値を示す所定値を超えないように決定されるとともに、前記第１基地局と前記ユーザ装置との間の通信のデータレートと、前記第２基地局と前記ユーザ装置との間の通信のデータレートとの和が、データレートの上限値を示す前記所定値を超えないように決定される
    　ことを特徴とする請求項１ないし５のうちいずれか１項に記載のデータレート制御情報通知方法。     The data rate control information is a sum of a data rate of communication between the gateway device and the first base station and a data rate of communication between the gateway device and the second base station. And a communication data rate between the first base station and the user apparatus, and communication between the second base station and the user apparatus. The data rate control information notification according to any one of claims 1 to 5, wherein the sum of the data rate and the data rate is determined so as not to exceed the predetermined value indicating an upper limit value of the data rate. Method.
  7. 　前記第１基地局は、ＬＴＥにおけるＭｅＮＢとなる基地局であり、前記第２基地局は、ＬＴＥにおける１つ又は複数のＳｅＮＢとなる１つ又は複数の基地局であり、前記ゲートウェイ装置はＳ－ＧＷである
    　ことを特徴とする請求項１ないし６のうちいずれか１項に記載のデータレート制御情報通知方法。     The first base station is a base station serving as a MeNB in LTE, the second base station is one or a plurality of base stations serving as one or a plurality of SeNBs in LTE, and the gateway device is an S- The data rate control information notification method according to any one of claims 1 to 6, wherein the data rate control information notification method is a GW.
  8. 　第１基地局、第２基地局、及び、各基地局と外部装置との間でデータの中継を行うゲートウェイ装置を有し、ユーザ装置が前記第１基地局及び前記第２基地局と通信を行う移動通信システムにおいて、前記第１基地局として使用される基地局であって、
    　前記ゲートウェイ装置と前記基地局との間の通信のデータレートと前記ゲートウェイ装置と前記第２基地局との間の通信のデータレートの比を決定する決定部と、
    　前記決定部で決定した比に基づいてデータレート制御情報を生成し、当該データレート制御情報を前記第２基地局に送信するデータレート制御情報送信部と、を備え、
    　前記基地局、及び、前記データレート制御情報を受信した前記第２基地局において、前記ユーザ装置の通信に係るデータレートが、前記データレート制御情報に基づく上限値を超えないようにデータレート制御が行われる
    　ことを特徴とする基地局。     A first base station, a second base station, and a gateway device that relays data between each base station and an external device, and a user device communicates with the first base station and the second base station In a mobile communication system to perform, a base station used as the first base station,
    A determining unit that determines a ratio of a data rate of communication between the gateway device and the base station and a data rate of communication between the gateway device and the second base station;
    A data rate control information transmitting unit that generates data rate control information based on the ratio determined by the determining unit and transmits the data rate control information to the second base station;
    In the base station and the second base station that has received the data rate control information, data rate control is performed so that a data rate related to communication of the user apparatus does not exceed an upper limit value based on the data rate control information. A base station characterized in that it is performed.
PCT/JP2015/052706 2014-01-31 2015-01-30 Method for notifying data rate control information, and base station WO2015115606A1 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017527237A (en) * 2014-08-08 2017-09-14 日本電気株式会社 Communications system
WO2018066702A1 (en) * 2016-10-07 2018-04-12 株式会社Ｎｔｔドコモ Wireless communication system, network device, and wireless communication method
JP2018511224A (en) * 2015-03-04 2018-04-19 インテル アイピー コーポレイション Convenient access of millimeter-wave wireless access technology based on edge cloud mobile proxy
JP2020188496A (en) * 2015-09-14 2020-11-19 日本電気株式会社 Communication method, first base station, and communication terminal

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011135145A (en) * 2009-12-22 2011-07-07 Kddi R & D Laboratories Inc Radio transmitter, mobile station device, base station device, and radio transmission method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6530380B2 (en) * 2013-05-02 2019-06-12 サムスン エレクトロニクス カンパニー リミテッド Method and apparatus for uplink power control in a wireless communication system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011135145A (en) * 2009-12-22 2011-07-07 Kddi R & D Laboratories Inc Radio transmitter, mobile station device, base station device, and radio transmission method

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
BLACKBERRY UK LIMITED: "Further Discussion on U-Plane Protocol Architecture Design Options", 3GPP TSG-RAN WG2#83BIS R2-133332, XP050718993 *
SAMSUNG: "Dual Connectivity Impact to S1/X2", 3GPP TSG-RAN WG3 #83 R3-140144, 31 January 2014 (2014-01-31), XP050738585 *
ZTE CORPORATION: "Discussion on control plane issues", 3GPP TSG-RAN WG2#83BIS R2-133145, XP050718890 *

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017527237A (en) * 2014-08-08 2017-09-14 日本電気株式会社 Communications system
US10091684B2 (en) 2014-08-08 2018-10-02 Nec Corporation Communication system
US10299159B2 (en) 2014-08-08 2019-05-21 Nec Corporation Communication system
JP2018511224A (en) * 2015-03-04 2018-04-19 インテル アイピー コーポレイション Convenient access of millimeter-wave wireless access technology based on edge cloud mobile proxy
JP2020188496A (en) * 2015-09-14 2020-11-19 日本電気株式会社 Communication method, first base station, and communication terminal
JP7127670B2 (en) 2015-09-14 2022-08-30 日本電気株式会社 Communication method and first base station
US11659096B2 (en) 2015-09-14 2023-05-23 Nec Corporation Gateway device, radio communication device, charging control method, data transmission method, and non-transitory computer readable medium
WO2018066702A1 (en) * 2016-10-07 2018-04-12 株式会社Ｎｔｔドコモ Wireless communication system, network device, and wireless communication method
US10856354B2 (en) 2016-10-07 2020-12-01 Ntt Docomo, Inc. Radio communication system, network device, and radio communication method

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